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Qunar Tech Salon
Qunar Tech Salon
Mar 10, 2022 · Operations

Design and Implementation of Cisco Nexus VPC for Qunar K8S Network

This article details the background, design rationale, network topology changes, and step‑by‑step procedures—including VPC configuration, BGP setup, and port‑channel adjustments—used to upgrade Qunar's data‑center network for Kubernetes deployments, with practical code examples and operational tips.

BGPCiscoDataCenter
0 likes · 11 min read
Design and Implementation of Cisco Nexus VPC for Qunar K8S Network
Qunar Tech Salon
Qunar Tech Salon
Jun 22, 2021 · Operations

Troubleshooting BFD Neighbor Failure on Cisco Nexus Switches with VPC Peer‑Gateway

This article details a Cisco Nexus network scenario where two switches use VPC and BFD for link fault detection, explains why BFD neighbor establishment fails due to VPC peer‑gateway causing TTL reduction and MAC rewriting, and presents test results and configuration recommendations to resolve the issue.

BFDCiscoHSRP
0 likes · 10 min read
Troubleshooting BFD Neighbor Failure on Cisco Nexus Switches with VPC Peer‑Gateway
Architects Research Society
Architects Research Society
Jun 8, 2020 · Operations

Data Center Structure Management and Automation with Cisco DCNM and Spine‑Leaf Architectures

This article explains various Cisco tools and architectures for data‑center structure management and automation, including Cisco Data Center Network Manager modes, Network Insights applications, and a detailed comparison of FabricPath, VXLAN flood‑and‑learn, VXLAN MP‑BGP EVPN, and MSDC Layer 3 spine‑leaf designs.

CiscoDCNMNetwork Automation
0 likes · 16 min read
Data Center Structure Management and Automation with Cisco DCNM and Spine‑Leaf Architectures
Architects Research Society
Architects Research Society
Jun 6, 2020 · Cloud Computing

Cisco VXLAN Flood and Learn Spine‑and‑Leaf Network Overview

This article explains Cisco's VXLAN flood‑and‑learn spine‑and‑leaf architecture, covering its standards compliance, encapsulation format, underlay and overlay network design, multicast and ingress replication, host discovery, routing, and multi‑tenant support for both Layer 2 and Layer 3 environments.

CiscoNetwork VirtualizationOverlay Network
0 likes · 11 min read
Cisco VXLAN Flood and Learn Spine‑and‑Leaf Network Overview
Architects Research Society
Architects Research Society
Jun 5, 2020 · Operations

Cisco FabricPath Spine‑and‑Leaf Network Architecture Overview

The article provides a comprehensive technical overview of Cisco's FabricPath spine‑and‑leaf network, detailing its encapsulation, control plane, broadcast handling, host discovery, multicast support, layer‑3 routing options, multitenancy features, and hardware requirements.

CiscoFabricPathLayer3
0 likes · 12 min read
Cisco FabricPath Spine‑and‑Leaf Network Architecture Overview
Architects Research Society
Architects Research Society
Jun 4, 2020 · Cloud Computing

Network Overlay Technologies for Modern Virtualized Data Center Architectures

The article explains the requirements of modern virtualized data‑center structures, describes network overlay concepts and formats such as VXLAN, NVGRE, TRILL and LISP, outlines their benefits like optimized device functions, scalability and overlapping addressing, and reviews Cisco's spine‑and‑leaf designs that meet these needs.

CiscoVxLANcloud computing
0 likes · 5 min read
Network Overlay Technologies for Modern Virtualized Data Center Architectures
Architects Research Society
Architects Research Society
May 29, 2020 · Cloud Computing

Series: Cisco Data Center Spine and Leaf Architecture – Design Overview Whitepaper

This article explains Cisco's evolution from traditional three‑tier data center designs to modern spine‑and‑leaf and Clos network architectures, highlighting the limitations of STP, the introduction of vPC, and the benefits of virtualization for high‑bandwidth, low‑latency server connectivity.

CiscoClos NetworkSpine-and-Leaf
0 likes · 7 min read
Series: Cisco Data Center Spine and Leaf Architecture – Design Overview Whitepaper
DevOps Cloud Academy
DevOps Cloud Academy
Aug 9, 2019 · Operations

Static Routing Configuration and Verification on Cisco Routers

This guide explains the concepts of routing tables, static and default routes, and provides step‑by‑step Cisco router configuration commands and verification procedures to achieve full network connectivity between two routers and their attached PCs.

CiscoIP routingnetwork fundamentals
0 likes · 4 min read
Static Routing Configuration and Verification on Cisco Routers
DevOps Cloud Academy
DevOps Cloud Academy
Aug 9, 2019 · Operations

Guide to Cisco Switch Configuration Commands and Modes

This article explains the different Cisco device configuration modes—user, privileged, global, and interface—provides command examples for setting hostnames, viewing version and MAC tables, and configuring duplex and speed settings on switch ports, illustrated with screenshots.

CLICiscoduplex
0 likes · 3 min read
Guide to Cisco Switch Configuration Commands and Modes
Practical DevOps Architecture
Practical DevOps Architecture
Jul 25, 2019 · Information Security

Configuring an IPSec VPN Between Huawei and Cisco Routers Using Virtual Tunnel Interfaces

This guide explains the security risks of transparent Internet data transmission, introduces IPSec's authentication, encryption, integrity, and anti‑replay features, and provides step‑by‑step Huawei and Cisco router configurations—including interface setup, IKE proposals, IPSec profiles, and verification commands—to securely connect branch and headquarters networks via a VPN.

CiscoHuaweiIPSec
0 likes · 13 min read
Configuring an IPSec VPN Between Huawei and Cisco Routers Using Virtual Tunnel Interfaces
Architects' Tech Alliance
Architects' Tech Alliance
Nov 7, 2018 · Fundamentals

Survey of Network Types and Vendors in High‑Performance Computing (HPC) Environments

The Intersect360 2016 survey of 474 HPC sites covering 723 compute systems, 633 storage systems and 638 LANs reveals that Ethernet and InfiniBand dominate system interconnect, storage and LAN networks, with Mellanox and Cisco accounting for over half of installations, while newer technologies such as 10 GE, 40 G, 56 G InfiniBand and Omni‑Path show evolving market shares driven by bandwidth and latency demands.

CiscoEthernetHPC
0 likes · 10 min read
Survey of Network Types and Vendors in High‑Performance Computing (HPC) Environments
Practical DevOps Architecture
Practical DevOps Architecture
Nov 27, 2015 · Information Security

Configuring Cisco Router Interfaces and Access Lists

This guide demonstrates how to configure FastEthernet interfaces on a Cisco router, assign IP addresses, create and apply a standard access list to block a specific host, and verify the access list entries using show commands.

Access ListCiscoRouter
0 likes · 3 min read
Configuring Cisco Router Interfaces and Access Lists
Practical DevOps Architecture
Practical DevOps Architecture
Nov 16, 2015 · Fundamentals

Configuring Router Interface IP and DHCP Settings

This guide explains how to configure a router’s FastEthernet interface with a static IP address, enable DHCP services, set address exclusions, and configure a host to obtain its IP settings automatically, using Cisco IOS command-line syntax.

CiscoDHCPIP configuration
0 likes · 2 min read
Configuring Router Interface IP and DHCP Settings
Practical DevOps Architecture
Practical DevOps Architecture
Nov 10, 2015 · Fundamentals

Configuring VLANs, Trunk Ports, and EtherChannel on Cisco Switches

This guide demonstrates how to create VLANs, assign them to interface ranges, configure trunk ports, and set up EtherChannel for redundant parallel connections on Cisco switches using CLI commands.

CiscoEtherChannelVLAN
0 likes · 3 min read
Configuring VLANs, Trunk Ports, and EtherChannel on Cisco Switches
Practical DevOps Architecture
Practical DevOps Architecture
Nov 4, 2015 · Operations

Configuring Interfaces and Static Routes on Cisco Routers (R1, R2, R3)

This guide demonstrates how to configure interfaces and static routes on three Cisco routers (R1, R2, R3) using CLI commands, assign IP addresses, enable interfaces, and verify the routing table, providing a step‑by‑step example of basic network routing setup.

Cisconetwork fundamentalsrouter configuration
0 likes · 4 min read
Configuring Interfaces and Static Routes on Cisco Routers (R1, R2, R3)
Practical DevOps Architecture
Practical DevOps Architecture
May 28, 2015 · Operations

10 Cisco IOS Service Subcommands and Their Usage

This article lists and explains ten Cisco IOS service subcommands—including service dhcp, service linenumber, service password-encryption, service nagle, and others—detailing their functions, typical usage scenarios, and security considerations for configuring routers and switches.

CiscoiOSnetwork
0 likes · 6 min read
10 Cisco IOS Service Subcommands and Their Usage